We want to use a ceiling fan pedal generator to charge a 4v lead acid battery for lighting in remote mountain villages of northern Luzon. We discovered our newly built VAWT is not effective because the population lives close to rivers with steep mountains on either side. Nor is the river a possibility due to dry season conditions.
After rectifying, the generator is making more than 60v but less than half an amp. All the lead acid battery charger circuits I have seen need 3amp ac input, far more than our ceiling fan. The only component I am missing is the LM547. Is there a substitute? Also, since we have more volts and less current than necessary, is it possible to convert one to the other? As you can probably quess, I am not experienced. Thanks.
Can use a transformer to convert high voltage / low current into low voltage / high current. Possibly a 220:24 rated at 4 or 5A. Gen to transformer. Out of transformer to the rectifiers. G-
The "need 3A AC input" is probably a misunderstanding. Even 1A will raise the battery volts on a tiny SLA so fast, most of the power will be lost in the controller. G-
ceiling fan pedal generator
Posted - 26/06/2009 : 02:04:39
